I have the sme problem, I have a RSA Predator and prefer the usb connection, been looking for a PDA or Palm type device to use as a music source. My current solution is a MSI U123 netbook, it has a 9 cell battery with about 8 hours of life, I upgraded the hard drive to 500 GB and the Ram to 2 gigs...sounds great, but not pocket size. But there has got to be a solution. To think of all the cool wiz bang gadgets and no iPod like device with a suitable usb out. I emailed Ray at RSA, he is always quik to respond, great guy, he makes an analog cable, like many others out there that are iPod LOD to 3.5 mm mini stereo plug, quote from my email "Yes we do have & that will make your classics shine through the LOD.
$100.00 for the cable $14.00 for shipping in the US & 3% pay-pal fee.
Total shipped in the US is $117.42"....which isnt an ideal solution for what we truely want, a direct didtal connection to the wonderful DAc in the predator. Im going to keep looking for a solution.
Good hunting
Cheers
Bret